Since this is bumped,
I would like to ask @OP to enable "Show Address Path" option in the settings to check the latest address' derivation path in the 'Balance' tab.
That should be a good indication if the wallet has some sort of corruption if its showing a standard derivation path. e.g.: m/84'/0'/0'/........
If this is the case, there's a great chance that it's unrecoverable.
Otherwise, he can just copy it (up to the account' index: m/purpose'/coin'/account'/chain/address) when restoring to other wallets like Electrum.
@Obdmageek You may reply if you're not familiar with derivation paths.
Once again, I appreciate your kind suggestion. When recovering via Electrum I used the detect account option which said it was a bip32 m/44h/0h/0h derivation pathway and since I only have one account with Mycelium. However, it still displays the wrong account balance and history of 5years ago.